Money makes the world go ’round, they say, but there was a point in history where goods mattered more than stone-cold cash.
Before people figured out that shiny metal discs made good money, ancient Brits were paying for stuff with plants, seeds, and other natural goods that had real practical value instead of just being symbols of wealth. Here are some of the most valuable plants that, these days, we take for granted and don’t assign much monetary value to.
1. Barley was basically the Bitcoin of ancient Britain.
Barley was one of the most important trade commodities because it could be eaten, brewed into beer, or used as animal feed, making it incredibly versatile and always in demand. People measured wealth in terms of how many sacks of barley they had stored away, and it was commonly used to pay wages and settle debts.
The grain was so standardized as currency that there were specific measures for trading—a certain volume of barley equalled specific amounts of other goods. It was like having an ancient exchange rate system based on how much grain you could carry, and since everyone needed food, barley was always accepted as payment.
2. Wheat kernels were the small change of the plant world.
While barley was for big transactions, individual wheat kernels were used for smaller purchases, kind of like how we use pennies today. Wheat was incredibly valuable because it made the best bread and could be stored for long periods without going bad if kept dry.
People would literally count out wheat grains to pay for small items, and merchants carried little pouches of wheat the same way we carry coins in our pockets. The fact that each grain was roughly the same size and weight made it perfect for standardized small transactions.
3. Salt from coastal plants was worth its weight in, well, salt.
Salt was so valuable that the word “salary” comes from the Latin word for salt, and in ancient Britain, salt harvested from saltwater plants and marshes was a major form of currency. It was essential for preserving food, especially meat, which made it incredibly valuable for survival.
Coastal communities that could harvest salt from sea plants had a massive economic advantage because everyone inland needed salt but couldn’t produce it themselves. Salt was lightweight, didn’t spoil, and was always in demand, making it perfect for long-distance trade.
4. Flax seeds bought you clothes (literally).
Flax plants were the source of linen, which was one of the most important textiles in ancient Britain, so flax seeds were incredibly valuable as currency because they represented the potential to make clothing and rope. People would trade flax seeds, knowing they could grow their own textile plants or trade them to weavers.
The seeds were small, uniform, and easy to count, making them practical for transactions, plus they could actually be planted to grow more flax if needed. It was like investing in the stock market, except your stocks could literally grow into useful products.
5. Dried peas were the protein bank account.
Protein was hard to come by in ancient diets, so dried peas and other legumes were incredibly valuable as both food and currency. They could be stored for years without spoiling, provided essential nutrition, and were easy to transport and count for trading purposes.
Peas were especially valuable because they could be eaten fresh, dried for storage, or even ground into flour, making them extremely versatile. A bag of dried peas was like having a savings account that you could literally eat if times got really tough.
6. Hazelnuts were nature’s coins.
Hazelnuts were perfect natural currency because they were all roughly the same size and weight, didn’t spoil easily, and were packed with nutrition and oil that made them valuable for both eating and other uses. People would string them up or carry them in pouches for trading.
Archaeological evidence shows that hazelnuts were so important that people were managing hazel groves and deliberately encouraging their growth thousands of years ago. They were basically farming money trees, except the money was also delicious and nutritious.
7. Honey from wild plants was liquid gold.
Before sugar existed, honey was the only way to sweeten food, making it incredibly valuable for trade. Wild honey from bees that fed on native British plants was especially prized, and people would trade significant amounts of other goods for just small quantities of honey.
Honey also had medicinal properties and could be fermented into mead, giving it multiple uses that made it extremely valuable. A pot of honey could buy you a lot of other goods because it was rare, took significant effort to collect, and had multiple practical applications.
8. Walnuts were the ancient equivalent of luxury goods.
Walnuts were extremely valuable because they provided high-quality oil and protein, plus the shells could be used for dyes and other purposes. They were like the luxury cars of the ancient plant world. Not everyone could afford them, but they were definitely worth having.
The oil from walnuts was particularly valuable because it could be used for cooking, lighting, and preserving other foods. A good walnut harvest could set a family up financially for an entire year, making walnut trees incredibly valuable property.
9. Elderberries were medicinal money.
Elderberries were crucial for making medicines and preserves, giving them significant trade value beyond just being food. The berries, flowers, and bark of elder trees all had different medicinal uses, making the entire plant valuable for trading.
People who knew how to properly process elderberries into effective medicines could command high prices for their products, and dried elderberries were commonly traded as currency because everyone needed access to medicine but not everyone knew how to prepare it properly.
10. Acorns were the backup currency everyone could find.
Oak trees were everywhere in ancient Britain, and acorns could be processed into flour or fed to pigs, making them a reliable fallback currency when other crops failed. While they required significant processing to be edible for humans, they were abundant and nutritious enough to sustain people through hard times.
Acorns were somewhat of an ancient equivalent of government-backed currency because oak trees were so common that there was always a steady supply available. They weren’t the most valuable plant currency, but they were reliable and accessible to almost everyone, making them perfect for everyday small transactions.